Table 4.

	N	Pretest		Stress unit		Tolerance		Posttest		Interaction
		Mean	SD	Mean	SD	Mean	SD	Mean	SD
Theta1 F3
Controls	18	41.33	3.40	41.52	3.49	39.88	2.90	41.25	3.34	F 3 = 8.43, p = 0.000
Hypertensives	22	42.56	5.54	42.77	5.42	43.02	5.25	42.60	4.95
Theta1 AF4
Controls	18	43.65	5.10	43.80	5.79	42.04	4.79	43.43	5.43	F 3 = 7.52, p = 0.000
Hypertensives	22	45.55	7.01	45.80	6.68	46.11	6.60	45.29	6.51